MY Prusa i2 prints PLA just fine. Problem is, when I try to print ABS, the heated bed takes forever to heat up. I'm using an atx power supply, and I don't want to mess with getting another one. Are there any ways to insulate this bed so that it reaches temp faster for printing ABS?
You could put some sort of insulation under the heated bed. I use a couple of layers of cork for this purpose, but many other materials will work as well.
Yes, as above - I also place a piece of thick card (or some better insulator) on top of the bed when I power it on Seems to reach temp quicker as there is less heat being lost to the surroundings.
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Waitaki 3D Printer
